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Finding the Fourth Proportional to 633.96, 876.34 and 608.12

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Solution

The fourth proportional to 633.96, 876.34 and 608.12 is: 840.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    633.96 : 876.34 = 608.12 : x
  2. Step 2: Convert to fraction form
    633.96/876.34 = 608.12/x
  3. Step 3: Cross multiply
    633.96x = 876.34 × 608.12
  4. Step 4: Simplify right side
    633.96x = 532,919.88
  5. Step 5: Solve for x
    x = 532,919.88/633.96
  6. Step 6: Final answer
    x = 840.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.